Update from trunk r1375509 through r1450773asyncstore

git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/asyncstore@1451244 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 149 insertions, 0 deletions

diff --git a/cpp/src/qpid/amqp/Encoder.h b/cpp/src/qpid/amqp/Encoder.h
new file mode 100644
index 0000000000..e2938a002a
--- /dev/null
+++ b/cpp/src/qpid/amqp/Encoder.h
@@ -0,0 +1,149 @@
+#ifndef QPID_AMQP_ENCODER_H
+#define QPID_AMQP_ENCODER_H
+
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+#include "qpid/sys/IntegerTypes.h"
+#include "qpid/amqp/Constructor.h"
+#include <stddef.h>
+#include <string>
+
+namespace qpid {
+namespace types {
+class Uuid;
+}
+namespace amqp {
+struct CharSequence;
+struct Descriptor;
+
+/**
+ * Class to help create AMQP encoded data.
+ */
+class Encoder
+{
+  public:
+    void writeCode(uint8_t);
+
+    void write(bool);
+    void write(uint8_t);
+    void write(uint16_t);
+    void write(uint32_t);
+    void write(uint64_t);
+    void write(int8_t);
+    void write(int16_t);
+    void write(int32_t);
+    void write(int64_t);
+    void write(float);
+    void write(double);
+    void write(const qpid::types::Uuid&);
+
+    void writeNull(const Descriptor* d=0);
+    void writeBoolean(bool, const Descriptor* d=0);
+    void writeUByte(uint8_t, const Descriptor* d=0);
+    void writeUShort(uint16_t, const Descriptor* d=0);
+    void writeUInt(uint32_t, const Descriptor* d=0);
+    void writeULong(uint64_t, const Descriptor* d=0);
+    void writeByte(int8_t, const Descriptor* d=0);
+    void writeShort(int16_t, const Descriptor* d=0);
+    void writeInt(int32_t, const Descriptor* d=0);
+    void writeLong(int64_t, const Descriptor* d=0);
+    void writeFloat(float, const Descriptor* d=0);
+    void writeDouble(double, const Descriptor* d=0);
+    void writeUuid(const qpid::types::Uuid&, const Descriptor* d=0);
+
+    void writeSymbol(const CharSequence&, const Descriptor* d=0);
+    void writeSymbol(const std::string&, const Descriptor* d=0);
+    void writeString(const CharSequence&, const Descriptor* d=0);
+    void writeString(const std::string&, const Descriptor* d=0);
+    void writeBinary(const CharSequence&, const Descriptor* d=0);
+    void writeBinary(const std::string&, const Descriptor* d=0);
+
+    void* startList8(const Descriptor* d=0);
+    void* startList32(const Descriptor* d=0);
+    void endList8(uint8_t count, void*);
+    void endList32(uint32_t count, void*);
+
+    void* startMap8(const Descriptor* d=0);
+    void* startMap32(const Descriptor* d=0);
+    void endMap8(uint8_t count, void*);
+    void endMap32(uint32_t count, void*);
+
+    void* startArray8(const Constructor&, const Descriptor* d=0);
+    void* startArray32(const Constructor&, const Descriptor* d=0);
+    void endArray8(size_t count, void*);
+    void endArray32(size_t count, void*);
+
+    void writeDescriptor(const Descriptor&);
+    Encoder(char* data, size_t size);
+    size_t getPosition();
+    void resetPosition(size_t p);
+    char* skip(size_t);
+    void writeBytes(const char* bytes, size_t count);
+    virtual ~Encoder() {}
+  private:
+    char* data;
+    size_t size;
+    size_t position;
+
+    void write(const CharSequence& v, std::pair<uint8_t, uint8_t> codes, const Descriptor* d);
+    void write(const std::string& v, std::pair<uint8_t, uint8_t> codes, const Descriptor* d);
+    void check(size_t);
+
+    template<typename T> void write(T value, uint8_t code, const Descriptor* d)
+    {
+        if (d) writeDescriptor(*d);
+        writeCode(code);
+        write(value);
+    }
+
+    template<typename T> void write(T value, std::pair<uint8_t, uint8_t> codes, const Descriptor* d)
+    {
+        if (value < 256) {
+            write((uint8_t) value, codes.first, d);
+        } else {
+            write(value, codes.second, d);
+        }
+    }
+
+    template<typename T> void* start(uint8_t code, const Descriptor* d)
+    {
+        if (d) writeDescriptor(*d);
+        writeCode(code);
+        //skip size and count, will backfill on end
+        return skip(sizeof(T)/*size*/ + sizeof(T)/*count*/);
+    }
+
+    template<typename T> void* startArray(uint8_t code, const Descriptor* d, const Constructor& c)
+    {
+        void* token = start<T>(code, d);
+        if (c.isDescribed) {
+            writeDescriptor(c.descriptor);
+        }
+        check(1);
+        writeCode(c.code);
+        return token;
+    }
+
+};
+
+}} // namespace qpid::amqp
+
+#endif  /*!QPID_AMQP_ENCODER_H*/